Characteristic of Runoff-Sediment Yield and Runoff Simulation on Hillslope in Northern Shaanxi

WANG Juan; SHI Wen-juan; WANG Quan-jiu; BAI Peng; SONG Xiao-yu

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Characteristic of Runoff-Sediment Yield and Runoff Simulation on Hillslope in Northern Shaanxi

更新时间：2024-11-07

- Characteristic of Runoff-Sediment Yield and Runoff Simulation on Hillslope in Northern Shaanxi
- Vol. 25, Issue 1, (2011)
- 作者机构：
  
  1. 西安理工大学,西北水资源与环境生态教育部重点实验室,西安,7100482. 西安理工大学,西北水资源与环境生态教育部重点实验室,西安,710048
  2. 黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
  CLC： S157.1
- Published：2011
- 稿件说明：
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WANG Juan, SHI Wen-juan, WANG Quan-jiu, et al. Characteristic of Runoff-Sediment Yield and Runoff Simulation on Hillslope in Northern Shaanxi[J]. 2011, 25(1).
DOI：

WANG Juan, SHI Wen-juan, WANG Quan-jiu, et al. Characteristic of Runoff-Sediment Yield and Runoff Simulation on Hillslope in Northern Shaanxi[J]. 2011, 25(1). DOI：

摘要

利用野外模拟降雨试验

研究了陕北坡地产流产沙的特性

结果表明:在相同雨强下

裸地径流总量是草地的1.15倍

是PAM地的1.46倍

是秸秆覆盖的2.64倍。裸地产沙总量是草地的1.3倍

是PAM地的1.5倍

是秸秆覆盖的44.4倍

秸秆覆盖的蓄水保沙效果最为显著;同一下垫面的累积产沙量与累积径流量呈显著的线性关系

相关系数0.95以上;根据短历时Philip公式建立的修正降雨产流模型

利用该模型对其径流进行了模拟。结果显示:修正的Philip模型可反映裸地、草地、PAM地的降雨产流特征

计算值与实测值误差在10%以内

满足精度要求

但对于秸秆覆盖地其适用性不强

有待于进一步研究。将土壤吸湿率S参数推求方法推广应用于草地以及PAM地

得到的土壤有效传导度与饱和导水率之间的关系为:草地K=0.90 KS

PAM地K=0.98 KS。该研究成果对于拟定不同黄土坡地的保水保肥措施具有重要参考意义。

Abstract

The rules of sediment and runoff using field simulated rainfall trails.The results show that: the runoff on barren land were 1.15

1.46 and 2.64 times greater than that on grass land and PAM land and straw mulch land

the sediment production on barren land were 1.3

1.5 and 44.4 times greater than that on grass land and PAM land and straw mulch land in the same rainfall intensity

and straw mulch was better than the others on the effect of soil and water conservation;cumulative sediment linearity increase with ...

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